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gre: Multi-point interfaces

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Type: feature

Change-Id: I0129ad6ace44a50a8a3b26db8e445cd06b2b49e8
Signed-off-by: Neale Ranns <nranns@cisco.com>
This commit is contained in:
Neale Ranns
2019-04-18 10:23:56 +00:00
committed by Ole Trøan
parent 79619c1014
commit 5f8f617332
21 changed files with 1085 additions and 146 deletions
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80
test/test_gre.py
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@ -12,6 +12,7 @@ from scapy.volatile import RandMAC, RandIP
from framework import VppTestCase, VppTestRunner
from vpp_sub_interface import L2_VTR_OP, VppDot1QSubint
from vpp_gre_interface import VppGreInterface
from vpp_nhrp import VppNhrp
from vpp_ip import DpoProto
from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpTable, FibPathProto
from util import ppp, ppc
@ -79,7 +80,7 @@ class TestGRE(VppTestCase):
super(TestGRE, self).setUp()
# create 3 pg interfaces - set one in a non-default table.
self.create_pg_interfaces(range(3))
self.create_pg_interfaces(range(5))
self.tbl = VppIpTable(self, 1)
self.tbl.add_vpp_config()
@ -94,6 +95,10 @@ class TestGRE(VppTestCase):
self.pg1.resolve_arp()
self.pg2.config_ip6()
self.pg2.resolve_ndp()
self.pg3.config_ip4()
self.pg3.resolve_arp()
self.pg4.config_ip4()
self.pg4.resolve_arp()
def tearDown(self):
for i in self.pg_interfaces:
@ -701,7 +706,7 @@ class TestGRE(VppTestCase):
#
gre_if = VppGreInterface(self, self.pg1.local_ip4,
"2.2.2.2",
outer_fib_id=1)
outer_table_id=1)
gre_if.add_vpp_config()
gre_if.admin_up()
gre_if.config_ip4()
@ -968,6 +973,77 @@ class TestGRE(VppTestCase):
route_via_tun_2.remove_vpp_config()
gre_if.remove_vpp_config()
def test_mgre(self):
""" mGRE IPv4 tunnel Tests """
for itf in self.pg_interfaces[3:]:
#
# one underlay nh for each overlay/tunnel peer
#
itf.generate_remote_hosts(4)
itf.configure_ipv4_neighbors()
#
# Create an L3 GRE tunnel.
# - set it admin up
# - assign an IP Addres
# - Add a route via the tunnel
#
gre_if = VppGreInterface(self,
itf.local_ip4,
"0.0.0.0",
mode=(VppEnum.vl_api_gre_tunnel_mode_t.
GRE_API_TUNNEL_MODE_MP))
gre_if.add_vpp_config()
gre_if.admin_up()
gre_if.config_ip4()
gre_if.generate_remote_hosts(4)
#
# for-each peer
#
for ii in range(1, 4):
route_addr = "4.4.4.%d" % ii
#
# route traffic via the peer
#
route_via_tun = VppIpRoute(
self, route_addr, 32,
[VppRoutePath(gre_if._remote_hosts[ii].ip4,
gre_if.sw_if_index)])
route_via_tun.add_vpp_config()
#
# Add a NHRP entry resolves the peer
#
nhrp = VppNhrp(self, gre_if,
gre_if._remote_hosts[ii].ip4,
itf._remote_hosts[ii].ip4)
nhrp.add_vpp_config()
#
# Send a packet stream that is routed into the tunnel
# - packets are GRE encapped
#
tx = self.create_stream_ip4(self.pg0, "5.5.5.5", route_addr)
rx = self.send_and_expect(self.pg0, tx, itf)
self.verify_tunneled_4o4(self.pg0, rx, tx,
itf.local_ip4,
gre_if._remote_hosts[ii].ip4)
#
# delete and re-add the NHRP
#
nhrp.remove_vpp_config()
self.send_and_assert_no_replies(self.pg0, tx)
nhrp.add_vpp_config()
rx = self.send_and_expect(self.pg0, tx, itf)
self.verify_tunneled_4o4(self.pg0, rx, tx,
itf.local_ip4,
gre_if._remote_hosts[ii].ip4)
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)